Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing oil » sharing our, sharing big, sharing his
wang yidan » wang yan
long can » long chain, long call, long span
long han » long chain, long thanh, long haul
oil long » oil line
long arm » long term

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan ((long can) OR (long han)) cost sharing oil long arm ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan ((long can) or (long han)) cost sharing oil long arm ;*.